Thermal Deformation Analysis and Structural Optimization of HighPrecision Reflector Engineering Models on Satellites

LI Yanyong; WEI Juanfang; JIANG Wenjian

doi:10.21656/1000-0887.390089

Volume 39 Issue 6

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Article Navigation > Applied Mathematics and Mechanics > 2018 > 39(6): 657-664

LI Yanyong, WEI Juanfang, JIANG Wenjian. Thermal Deformation Analysis and Structural Optimization of HighPrecision Reflector Engineering Models on Satellites[J]. Applied Mathematics and Mechanics, 2018, 39(6): 657-664. doi: 10.21656/1000-0887.390089

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Thermal Deformation Analysis and Structural Optimization of HighPrecision Reflector Engineering Models on Satellites

doi: 10.21656/1000-0887.390089

¹Space Structures Research Center, Zhejiang University, Hangzhou 310058, P.R.China;²Xi’an Institute of Space Radio Technology, Xi’an 710100, P.R.China

Received Date: 2017-11-21
Rev Recd Date: 2018-04-05
Publish Date: 2018-06-15

Abstract

Abstract

The finite element modeling method and material parameter valuing method were presented for a 2 m diameter satellite reflector engineering model, including the honeycomb sandwich structure, the backframe tubes and the patches connecting the back frame and the reflector. The thermal deformation and the variation of pointing accuracy in unfolded work condition of the reflector under extreme high/low temperatures were analyzed. Based on the principle of minimum inorbit thermal deformation, the optimal design values of the parameters, including the section parameters of the backframe, the thickness of the backframe tubes, the connection mode and the density of patches, were obtained by means of the discrete data comparative analysis method. The structural optimization of the reflector engineering model was fulfilled.
- satellite,
- reflector,
- thermal deformation,
- structural optimization

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References(9)

References

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